Fenamiphos is a member of the organophosphate class of pesticides that has shown significant activity in controlling a wide spectrum of nematode pests. Nematodes are small worms that are capable of living as parasites on the surface or within the tissue of plants. Fenamiphos is useful in fighting nematode infestations in crops such as tobacco, cocoa, turf, pineapples, citrus, bananas, and other fruits and vegetables. The mechanism of action appears to be inhibition of acetyl cholinesterase, thus disrupting neural networks in nematodes.